(19)

(11)

EP 4 115 596 A1

(12)

(43) Date of publication: 11.01.2023 Bulletin 2023/02 (21) Application number: 21714518.4 (22) Date of filing: 03.03.2021

(51) International Patent Classification (IPC):  H04L 29/12(2006.01) H04L 29/08(2006.01) (52) Cooperative Patent Classification (CPC): H04L 61/4511; H04L 67/1001 (86) International application number: PCT/US2021/020740 (87) International publication number: WO 2021/178586 (10.09.2021 Gazette 2021/36)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 04.03.2020 US 202062985160 P 02.03.2021 US 202117189796 (71) Applicant: QUALCOMM INCORPORATED San Diego, California 92121-1714 (US)	(72) Inventors: ZHANG, Juan San Diego, California 92121-1714 (US) PAYYAPPILLY, Ajith Tom San Diego, California 92121-1714 (US) CHIN, Tom San Diego, California 92121-1714 (US) (74) Representative: Dunlop, Hugh Christopher et al Maucher Jenkins Seventh Floor Offices Artillery House 11-19 Artillery Row London SW1P 1RT London SW1P 1RT (GB)